HP-UX Reference (11i v1 00/12) - 1M System Administration Commands N-Z (vol 4)
__________________________________________________________________________________________________________________________________________________________________________________________________
__________________________________________________________________________________________________________________________________________________________________________________________________
STANDARD Printed by: Nora Chuang [nchuang] STANDARD
/build/1111/BRICK/man1m/naaagt.1m
________________________________________________________________
___ ___
v
vgscan(1M) vgscan(1M)
the /etc/lvmtab .
If for some reason, there is a need to re-construct /etc/lvmtab when the system is running production
application, vgscan will create a partial /etc/lvmtab . In this case, most of the primary paths should
be included in the /etc/lvmtab . Use vgextend to include any missing alternate paths in the VG.
EMC DISK WARNINGS
Starting at 10.20, the vgscan command is supporting additional EMC Symmetrix disk product functional-
ity (see vgchgid(1M)). The vgscan command will be enforcing a new rule such that only EMC disks with
the same attributes can belong to the same volume group. Note that an EMC disk, without any of the addi-
tional attributes, can still be mixed with non-EMC disks in the same volume group. Please consult your
EMC Symmetrix documentation, if applicable.
CROSS-CABINET VOLUME GROUP WARNINGS
On multi-cabinet V-Class systems, it is possible to create a volume group using physical volumes that are
physically attached to different cabinets. However, due to limitations in the HP-UX boot sequence, such a
cross-cabinet volume group cannot contain root, boot, swap, or dump logical volumes. If vgscan discovers
a cross-cabinet volume group that contains a root, boot, swap, or dump logical volume, it will not update
the /etc/lvmtab file for that volume group.
EXTERNAL INFLUENCES
Environment Variables
LANG determines the language in which messages are displayed.
If LANG is not specified or is null, it defaults to "C" (see lang(5)).
If any internationalization variable contains an invalid setting, all internationalization variables default to
"C" (see environ(5)).
EXAMPLES
Scan the primary controller device paths for all the physical volumes on the system, but do not update the
/etc/lvmtab file:
vgscan -p -v
Scan all controller device paths to all physical volumes on the system:
vgscan -a -v
Scan the primary controller device paths for all the physical volumes on the system and re-create
/etc/lvmtab file:
vgscan -v
The following messages will appear after /etc/lvmtab file is re-created.
*** LVMTAB has been created successfully.
*** If PV links are configured in the system
*** Do the following to resync information on disk.
*** #1. vgchange -a y
*** #2. lvlnboot -R
SEE ALSO
vgexport(1M), vgimport(1M).
Section 1M−−1034 − 2 − HP-UX Release 11i: December 2000
___
___